Merge branch 'nohv_v2_wstimer_direct' into 'master'

x86: hyperv-v: Various unmerged patches

See merge request kvm-unit-tests/kvm-unit-tests!52

x86: hyperv: improve naming of stimer functions

- synic_supported() is renamed to hv_synic_supported().
- stimer_supported() is renamed to hv_stimer_supported().

Signed-off-by: Metin Kaya <metikaya

x86: hyperv: improve naming of stimer functions

- synic_supported() is renamed to hv_synic_supported().
- stimer_supported() is renamed to hv_stimer_supported().

Signed-off-by: Metin Kaya <metikaya@amazon.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>

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Merge tag 'kvm-x86-2023.09.01' of https://github.com/kvm-x86/kvm-unit-tests into HEAD

x86 fixes, cleanups, and new testcases, and a few generic changes

- Fix a bug in runtime.bash that caused it t

Merge tag 'kvm-x86-2023.09.01' of https://github.com/kvm-x86/kvm-unit-tests into HEAD

x86 fixes, cleanups, and new testcases, and a few generic changes

- Fix a bug in runtime.bash that caused it to mishandle "check" strings with
multiple entries, e.g. a test that depends on multiple module params
- Make the PMU tests depend on vPMU support being enabled in KVM
- Fix PMU's forced emulation test on CPUs with full-width writes
- Add a PMU testcase for measuring TSX transactional cycles
- Nested SVM testcase for virtual NMIs
- Move a pile of code to ASM_TRY() and "safe" helpers
- Set up the guest stack in the LBRV tests so that the tests don't fail if the
compiler decides to generate function calls in guest code
- Ignore the "mispredict" flag in nSVM's LBRV tests to fix false failures
- Clean up usage of helpers that disable interrupts, e.g. stop inserting
unnecessary nops
- Add helpers to dedup code for programming the APIC timer
- Fix a variety of bugs in nVMX testcases related to being a 64-bit host

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x86: replace irq_{enable|disable}() with sti()/cli()

This removes a layer of indirection which is strictly
speaking not needed since its x86 code anyway.

Signed-off-by: Maxim Levitsky <mlevitsk@red

x86: replace irq_{enable|disable}() with sti()/cli()

This removes a layer of indirection which is strictly
speaking not needed since its x86 code anyway.

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Link: https://lore.kernel.org/r/20221122161152.293072-2-mlevitsk@redhat.com
[sean: move and reword IRQ shadow to be above and about safe_halt()]
Signed-off-by: Sean Christopherson <seanjc@google.com>

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x86: always set up SMP

Currently setup_vm cannot assume that it can invoke IPIs, and therefore
only initializes CR0/CR3/CR4 on the CPU it runs on. In order to keep the
initialization code clean, le

x86: always set up SMP

Currently setup_vm cannot assume that it can invoke IPIs, and therefore
only initializes CR0/CR3/CR4 on the CPU it runs on. In order to keep the
initialization code clean, let's just call smp_init (and therefore
setup_idt) unconditionally.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Switch the order of the parameters in report() and report_xfail()

Commit c09c54c66b1df ("lib: use an argument which doesn't require
default argument promotion") fixed a warning that occurs with Clan

Switch the order of the parameters in report() and report_xfail()

Commit c09c54c66b1df ("lib: use an argument which doesn't require
default argument promotion") fixed a warning that occurs with Clang,
but introduced a regression: If the "pass" parameter is a value
which has only set the condition bits in the upper 32 bits of a
64 bit value, the condition is now false since the value is truncated
to "unsigned int" so that the upper bits are simply discarded.

We fixed it by reverting the commit, but that of course also means
trouble with Clang again. We can not use "bool" if it is the last
parameter before the variable argument list. The proper fix is to
swap the parameters around and make the format string the last
parameter.

This patch (except the changes in lib/libcflat.h and lib/report.c
and some rebase conflicts along the way) has basically been created
with following coccinelle script (with some additional manual tweaking
of long and disabled lines afterwards):

@@
expression fmt;
expression pass;
expression list args;
@@
report(
-fmt, pass
+pass, fmt
, args);

@@
expression fmt;
expression pass;
expression list args;
@@
report_xfail(
-fmt, xfail, pass
+xfail, pass, fmt
, args);

Tested-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20191206113102.14914-1-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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x86: Remove redundant page zeroing

Now that alloc_page() zeros the page, remove the redundant page zeroing.

Suggested-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Nadav Amit <nadav.amit@gma

x86: Remove redundant page zeroing

Now that alloc_page() zeros the page, remove the redundant page zeroing.

Suggested-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Nadav Amit <nadav.amit@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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lib: move page allocator here from x86

This is another step in porting the x86 (v)malloc implementation to
other architectures.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

add hyperv_connections test

Add a test for Hyper-V message and event connections.

It requires QEMU with the extended test device supporting message end
event connection test modes (recently posted

add hyperv_connections test

Add a test for Hyper-V message and event connections.

It requires QEMU with the extended test device supporting message end
event connection test modes (recently posted on qemu-devel). On older
QEMU versions the test reports a single SKIP.

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>

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